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    PROCESS FOR PREPARING SELECTIVE HYDROGENATION CATALYST, COMPRISING A STEP OF FORMING A NI-CU ALLOY IN PRE-IMPREGNATION
    33.
    发明申请
    PROCESS FOR PREPARING SELECTIVE HYDROGENATION CATALYST, COMPRISING A STEP OF FORMING A NI-CU ALLOY IN PRE-IMPREGNATION 有权

    公开(公告)号：US20220062886A1

    公开(公告)日：2022-03-03

    申请号：US17423039

    申请日：2020-01-08

    Applicant: IFP Energies nouvelles

    Inventor： Malika BOUALLEG ,  Anne-Agathe QUOINEAUD

    IPC: B01J37/18 ,  B01J37/08 ,  B01J23/755 ,  B01J37/20 ,  C07C5/10 ,  C07C5/03

    Abstract: A process for preparing a selective hydrogenation catalyst comprising nickel, copper and a support comprising at least one refractory oxide, comprising the following steps: bringing the support into contact with a solution containing at least one copper precursor and one nickel precursor; drying the catalyst precursor at a temperature of less than 250° C.; reducing the catalyst precursor by bringing said precursor into contact with a reducing gas at a temperature of between 150° C. and 250° C.; bringing the catalyst precursor into contact with a solution comprising a nickel precursor; a step of drying the catalyst precursor at a temperature of less than 250° C.; reducing the catalyst precursor by bringing said precursor into contact with a reducing gas at a temperature of between 150° C. and 250° C.

    METHOD FOR PRODUCING AN ALUMINA GEL HAVING A HIGH DISPERSIBILITY AND A SPECIFIC CRYSTALLITE SIZE
    35.
    发明申请
    METHOD FOR PRODUCING AN ALUMINA GEL HAVING A HIGH DISPERSIBILITY AND A SPECIFIC CRYSTALLITE SIZE 审中-公开

    公开(公告)号：US20190055135A1

    公开(公告)日：2019-02-21

    申请号：US16072016

    申请日：2017-01-20

    Applicant: IFP Energies Nouvelles

    Inventor： Malika BOUALLEG ,  Olivier LAFON

    IPC: C01F7/34 ,  B01J13/00 ,  B28B3/20 ,  B28B11/24

    Abstract: Process for preparing alumina gel in a single precipitation step consisting of dissolving an aluminium precursor, aluminium chloride, in water, at a temperature of 10° C. to 90° C. such that the pH of the solution is from 0.5 to 5, for a period of 2 to 60 minutes, then adjusting the pH to 7.5 to 9.5 by adding a basic precursor, sodium hydroxide, to the solution obtained to obtain a suspension, at a temperature of 5° C. to 35° C., and for 5 minutes to 5 hours, followed by a filtration step, said process not comprising any washing steps. Also, novel alumina gel having a high dispersibility index, in particular a dispersibility index of more than 80%, a crystallite dimension of 0.5 to 10 nm, a chlorine content of 0.001% to 2% by weight and a sodium content of 0.001% to 2% by weight, the percentages by weight being expressed with respect to the total weight of the alumina gel.

    METHOD FOR HYDROCRACKING HYDROCARBON FEEDSTOCKS USING A CATALYST COMPRISING A ZEOLITE AND AN AMORPHOUS MESOPOROUS ALUMINA
    36.
    发明申请
    METHOD FOR HYDROCRACKING HYDROCARBON FEEDSTOCKS USING A CATALYST COMPRISING A ZEOLITE AND AN AMORPHOUS MESOPOROUS ALUMINA 审中-公开

    公开(公告)号：US20180362861A1

    公开(公告)日：2018-12-20

    申请号：US16060069

    申请日：2016-11-16

    Applicant: IFP ENERGIES NOUVELLES

    Inventor： Malika BOUALLEG ,  Antoine DAUDIN ,  Emmanuelle GUILLON

    IPC: C10G47/20 ,  B01J21/04 ,  B01J29/08 ,  B01J29/16 ,  B01J37/00 ,  B01J37/03 ,  B01J37/08

    Abstract: The present invention describes a process for hydrocracking at least one hydrocarbon feed in which at least 50% by weight of the compounds have an initial boiling point of more than 300° C. and a final boiling point of less than 540° C. using at least one catalyst comprising at least one metal from group VIB and/or at least one metal from group VIII of the periodic classification of the elements and a support comprising at least one zeolite containing at least one series of channels the opening of which is defined by a ring containing 12 oxygen atoms (12MR), and at least one binder, said support being prepared from a highly dispersible alumina gel, said hydrocracking process being operated at a temperature in the range 200° C. to 480° C., at a total pressure in the range 1 MPa to 25 MPa, with a ratio of the volume of hydrogen to the volume of hydrocarbon feed in the range 80 to 5000 litres per litre and with an hourly space velocity (HSV), defined as the ratio of the volume flow rate of liquid hydrocarbon feed to the volume of catalyst charged into the reactor, in the range 0.1 to 50 h−1.

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